201248599 六、發明說明： 【發明所屬之技術領域】 本發月係關於獅I示裝置，特別是—種可控制外部燈源之 顯示裝置及其控制方法。 【先前技術】 液晶電視與電漿電視挾著輕、薄、大尺寸的優勢，已經 許多人添購電視時的首選。目前選擇電視或者顯示器的一項重要 規格係為對比值。對比是指顯示器白色的亮度除以黑色的亮度， 數值越高’代表顯示II就越黑白分明，晝質自賊較好，能表現 出較豐富的層次感。是故顯示器業者追求的是對比值越高越好。 目前對於顯示器的對比規格都是定義在亮度低於Uux的暗室 令量測的，然而這樣的定義並不完全切合實際。主要的原因是實 際使用顯和_常會有環㈣源，但是對比值的規格並非在有 環境燈源的情況下測量的。通常看電視的時候，習慣上會把室内 f王開，維持-個明亮的環境，因此對於對比值的要求，只看暗 =對二匕疋不夠的’在亮室内的對比也經過外部燈源亮度的加乘貢 獻，才是人眼真實觀看到的效果。 ^於對比值的定義為顯示器自色的亮度除以黑色的亮度，因 1=對广:可透過增加白色影像亮度或是降低黑色影像亮度 但提高白色影像的亮度，一來受限於現今背光源技術以 2導先相關光學·师，而無法能有大幅度的增加，二來勢必 增加背光模組功率的消耗。從另一個方向降低黑色影像真度卻 1得到峨峨，，糊咖㈣織和 201248599 黑色影像亮度分別是 nits及丨nits，則對比值為· _ nits=· ’提升白色影像亮度到_nits，則對比值可提升為_ 此/她=_。若崎低黑色影像亮麟α5伽，_比值可顯 著提升為 500 nits/0.5 nits=l〇〇〇。 雖然有動騎比馳術可轉決對比_題，但是仍然會增 加顯示裝制成本且仍受外部燈源的影響。因此，在考慮實際使 用環境時環境燈源對顯示裝置對比的影響，亟需—種不需要^加 太多成本以提高顯示器實際使用時的對比效果的技術方案。曰 【發明内容】 ^ 。有鑑於先前技摘遭遇之_，本發露—種應用於顯示 器之控制方法與純’俾關步控制外界外部燈源之開關或亮暗 程度’以達成外界外部燈源的省電效果，並進—步提升顯示器對 比效果或降低反射縣，藉贿決先前技術所遭遇之問題。 根據本發明之實制之-種可㈣外部燈社顯示震置，其 包括有-影像顯示模組、-控制模組以及—訊號傳輸模組；其中 影像顯示模_以顯示-多媒體影像；控制模_回應—同步訊 號以產生H源控做號或—第二燈源控觀號，其中該同 步訊號於交替的複數個第—週期以及複數個第二職之期間產 生’於該些第-週期時，控制模組分別產生該第一燈源控制訊號 以控制-外部燈源於—第—操作狀態下操作，於該些第二週期 夺控制模組刀別產生該第一燈源控制訊號以控制該外部燈源於 一第二操作狀態下操作；訊號傳輸模組則用以傳輸第—燈源控制 訊號及/或第二燈源控制訊號。 5 201248599 根據本發明之實施例之一種可控制外部燈源之控制方法，包 括有週期性地提供一同步訊號，該同步訊號於交替的複數個第一 週期以及複數個第二週期之期間產生；於該些複數個第一週期時 分別產生-第-燈源控制訊號，該第—控制訊號用以控制一外部 燈源於-第-操作狀態下操作；傳送該第—燈源控制訊號至該外 部燈源；於該些複數個第二週期時分別產生一第二燈源控制訊 號’該第二控制訊號用以控制該外部燈源於 作；以及傳_第二獅_峨至料雜源/條〜、下知 部燈源的省電效果以及提·示騎比效果耕低反射現象。 、根據本购之實_之可_外鑛源之顯示裝置與控制方 法，可同步控料界外雜源之開_亮暗程度，以達成外界外201248599 VI. Description of the invention: [Technical field to which the invention pertains] This is a display device for a lion I, in particular, a display device capable of controlling an external light source and a control method therefor. [Prior Art] LCD TVs and plasma TVs have the advantage of being light, thin, and large in size, and many people have chosen the first choice when purchasing TV. An important specification for selecting a TV or display is a comparison value. Contrast refers to the brightness of the white of the display divided by the brightness of black. The higher the value, the more black and white the display is, the better the enamel is, and the richer layering. Therefore, the display industry pursues the higher the contrast value, the better. The current comparison specifications for displays are defined in darkroom measurements where the brightness is lower than Uux, however such definitions are not entirely realistic. The main reason is that the actual use of the _ _ often has a ring (four) source, but the specification of the contrast value is not measured with an ambient light source. Usually when watching TV, it is customary to open the indoor f king, maintaining a bright environment, so for the comparison value requirements, only look at the dark = the pair is not enough 'in the bright room contrast also through the external light source The additive contribution of brightness is the effect that the human eye actually sees. ^ The contrast value is defined as the brightness of the display's self-color divided by the brightness of black, because 1 = wide: can increase the brightness of the white image or reduce the brightness of the black image but improve the brightness of the white image, which is limited by the current backlight The source technology is not related to the optical division of the two-lead correlation optics, and it is bound to increase the power consumption of the backlight module. To reduce the trueness of the black image from the other direction, 1 is obtained, and the brightness of the black and white images of the paste coffee (4) and 201248599 are nits and 丨nits, respectively, and the contrast value is _ nits=· 'to increase the brightness of the white image to _nits, Then the comparison value can be promoted to _ this / her = _. If the Razaki low black image is bright, the _ ratio can be significantly increased to 500 nits/0.5 nits=l〇〇〇. Although there is a comparison between the ride and the ride, it will increase the display cost and still be affected by the external light source. Therefore, in consideration of the influence of the ambient light source on the display device contrast when considering the actual use environment, there is a need for a technical solution that does not require too much cost to improve the contrast effect when the display is actually used.曰 【Abstract】 ^ . In view of the previous technical experience, the present invention discloses a control method applied to a display and a pure '俾 switch to control the switch or brightness degree of the external external light source' to achieve the power saving effect of the external external light source, and to advance - Step up the display contrast effect or reduce the reflex county, borrowing bribes to solve the problems encountered in the prior art. According to the invention, the external (4) external lamp company displays a shock, which includes an image display module, a control module, and a signal transmission module; wherein the image display mode _ to display - multimedia image; control mode _Respond—synchronization signal to generate an H source control number or a second source control number, wherein the synchronization signal generates 'in the first period' during an alternate plurality of first periods and a plurality of second positions The control module respectively generates the first light source control signal to control the operation of the external light source in the -first operating state, and the second light source control module generates the first light source control signal in the second cycle The external light source is controlled to operate in a second operating state; the signal transmission module is configured to transmit the first light source control signal and/or the second light source control signal. 5 201248599 A control method for controlling an external light source according to an embodiment of the present invention includes periodically providing a synchronization signal generated during an alternating plurality of first periods and a plurality of second periods; And generating a first-first light source control signal for controlling the operation of an external light source in the -first operation state; transmitting the first light source control signal to the plurality of first periods An external light source; generating a second light source control signal during the plurality of second periods; the second control signal is used to control the external light source; and the second lion_峨 source /Article ~, the power-saving effect of the lower-level light source and the low-reflection phenomenon of the ploughing effect. According to the actual _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
:示範與解釋本發明之 』’係為本發明所揭露之可_外部燈源之顯 根據本發明之實施例，顯示裳置100可控 201248599 制外部燈源200之照明亮度，透過此一方式，進一步改善顯示裝 ' 置之對比。此處的外部燈源200 一般指的是非設置於顯示裝置中 * 之光源，例如客廳的照明光源。或者一般也稱為環境光源。 顯不製置100包括有-影像顯示模組110，影像顯示模組11〇 肖以齡-多媒體訊號。多媒體訊號—般係由影像訊號及域聲音 訊號組成。當然影像顯示模組11G只顯示多媒體峨中的影像訊 號。 當顯示裝置100係採用液晶作為顯示方式時，需要搭配一背 光模組(BacklightmodUle)120。由於液晶本身不發光，因此背光模 組的功用即在於根據液晶面板的尺寸提供分佈均句的面光源，以 使液晶t幕能正常麟。背紐組係制冷陰闕光管叹叫或 者發光二極體（LED)作為光源，但並非限定僅可為此兩種光源。 典型的液晶齡裝置的軸原理解制如下。#液晶顯示 裝置的控制電路（或者前述之影像顯示模組11G)接收到水平同步 訊號（Horizontal Synchronization)及垂直同步訊號（VerdcalThe invention is based on the embodiment of the present invention, and shows the illumination brightness of the external light source 200 controlled by the 201248599 system according to the embodiment of the present invention. To further improve the contrast of the display device. The external light source 200 herein generally refers to a light source that is not disposed in the display device, such as an illumination source of a living room. Or generally referred to as an ambient light source. The display device 100 includes an image display module 110, and the image display module 11 〇 肖龄龄-multimedia signal. The multimedia signal is generally composed of an image signal and a domain sound signal. Of course, the image display module 11G only displays the image signals in the multimedia frame. When the display device 100 uses liquid crystal as the display mode, it is necessary to use a backlight module (BacklightmodUle) 120. Since the liquid crystal itself does not emit light, the function of the backlight module is to provide a surface light source with a uniform sentence according to the size of the liquid crystal panel, so that the liquid crystal t screen can be normally lining. The back-up group is a cooling cathode light pipe sigh or a light-emitting diode (LED) as a light source, but is not limited to only two types of light sources. The axis of a typical liquid crystal age device is understood as follows. #液晶显示器 The control circuit of the device (or the aforementioned image display module 11G) receives the horizontal synchronization signal (Horizontal Synchronization) and the vertical synchronization signal (Verdcal)
Synchronization)時，控制電路會產生相對應的控制訊號分別輸入 至資料線訊唬輸出電路及掃描線訊號輸出電路，然後資料線訊號 輸出電路及掃描線訊號輸出電路會依據該控制訊號而對不同的資 料線及掃描線產生輸人城，因而控制每—晝素的細電晶體的 .導通及等效電容兩端的電位差，並進—步地改魏晶分子的排列 以及相對應的級穿透量，以將顯示資料顯示於面板上。由於細 部的控制運作麟本發騎欲保_技術範•，因此在此僅以概 述的方式說明液晶顯示裝置的驅動原理。 201248599 顯示裝置KK)另包財運作的其他祕賴組，其並非本發 明主要之保魏圍，且本領域熟_項技術者可錢前技術之揭 露而得知’在此不再贅述。惟需特別說_示裝置⑽設置有- 控制模組130 ’電性連接於影像顯示模組11()，控制模組1如係用 以回應-同步峨’並據以產生—燈源控觀號以控制一外部燈 源之操作。 >具體來說，控麵組13〇回應同步訊號以產生—第一燈源控 制_:或-第二燈源控制訊號，其中同步訊號於交替的複數個第 —週期以及複數㈣二職之_產生。在-實關中，於複數 個第-週期之期間時’控纖組13〇分別產生第一燈源控制訊號 以控制-外部燈源於—第—操作狀g下操作，於複數個第二週期 之期間時，控制模組130分別產生該第二燈源控制訊號以控制該 外部燈源於一第二操作狀態下操作。 、在-實施财，這邊的第—操作狀態與第二狀態係定義 為外。隱源的開啟或關。當第—燈源控制訊號録示欲開啟外 部燈源時’則第—操作狀態係為外部燈源之開啟狀態，而第二操 作狀態就糾雜源之關㈣，因此第二_控觀號係表示 欲關閉外部燈I軸這個實施例將第—操作狀態與第二操作狀 態分別定義為外部燈源之開啟狀態與外部燈源之_狀態，當然 也可分別相反錢為_狀態觸啟㈣。而另一實施财，也 可將外部燈源表現出的-第一亮度定義為第一操作狀態，外部燈 源表現出的-第二亮度定義為第二操作狀態。 因此，換句話說，本發明的實施例，除了同步控制外部燈源 201248599 的開啟與關閉外，也可以控制外部燈源的亮度。 在上述的實施例中提及的同步訊號，在一般的電視系統中可 使用垂直财峨（v_syne)。垂飼步減是顯示器兩個基本的 同步訊號之-，另-為水平同步減，水平同步訊號決定了顯示 器旦出-條^；越®幕線的時間，垂直同步訊號決定了顯示器從榮 幕頂部畫到底部，再返_始位置的時間，因此垂直同步訊號也 代表顯示器的更新頻率。 在另-實施财’當然也可由控麵組13G或者其他的電路 另外產生-個同步訊號。這邊定義為同步喊的用意伽為此一 如虎將致賴不晝面與外部燈源或者後祕制的背光模組的燈 控制或插黑晝面進行同步。因此，在另—實施财，前述之背光 模組120巾之燈源亦可回應此—同步訊號而使燈_作於第一操 =狀祕第二操作狀態，此處的第—操作狀態與第二操作狀態的 疋義與Μ賴外部燈源的第—操作狀態與第二操作狀態相類似。 在另-實施例中’控制模組13G喊複數個第—週期或複數 個第二週期以產生-插黑畫面。此—實施例可與前述控制背光模 組120之開啟或關閉之實施例相互搭配，並配合外部燈源的控制， 以產生各種不同㈣比值。例如，在—_种，控繼組⑽ 於複數個帛it期以產生一第一背光模組控制訊號，第一背光指 _制訊號用以控制-背光模組操作於—第—操作狀態，於複鸯 個第一週期以產生H絲組控制訊號，第二背光模組控制 訊號用以控制-背光模組操作於—第二操作狀態。在另—實施例 中’控制模組i3G於複數個第—週期以產生—第二f光模組控制 201248599 訊万虎第一老光模組控制讯號用以控制一背光模組操作於第二操 作狀態；控制模、组130於複數個第二週期以產生一第一背光模組 控制訊號，第-背光模組控制訊號用以控制—背光模组操作於一 第-操作狀態。這部份的運作細節將於後續的方法_中詳細描 述。當然這邊背光模組的操作狀態也類似於前面討論的操作狀 態’亦即該第-操作狀態係為背光模組之開啟狀態，第二操作狀 態係為背光模組之關閉狀態。而另一實施例中，也可將背光模組 表現出的-第-亮度定義為第一操作狀態，表現出的一第二亮度 定義為第二操作狀態。 顯示裝置100還設置有一個訊號傳輸模組，其係電性連接 控制模組130,訊號傳輸模組14〇用以傳送前述說明的第一燈源控 制訊號與/或第二燈源控制訊號給外部燈源2〇〇。 配合此一顯示裝置1〇〇的技術，外部燈源2〇〇也設置有訊號 傳輸模組210，用以接收前述說明的第一燈源控制訊號與第二燈源 控制訊號。外部燈源200也會設置有相應的處理電路，以處理第 一燈源控制訊號與第二燈源控制訊號，使得外部燈源2〇〇可回應 第一燈源控制訊號與/或第二燈源控制訊號而操作於第一操作狀態 與/或第二操作狀態。 前述的實施例中，雖然使用訊號傳輸模組14〇與訊號傳輸模 組210 ’訊號僅由顯示裝置100傳送至外部燈源2〇〇而進行接收， 因此僅有單向的傳送與接收，顯示裝置1〇〇並不會進一步接收由 外部燈源200傳來的訊號。但實際上，顯示裂置可設計為可 接收外部燈源200傳來的訊號以進行不同的操作或控制，因此， 201248599 雖然目前的實施例訊號只是單向的傳輸，當然訊號傳輸模組也可 - 雙向的傳送與接收，同時具有傳送與接收功能。 .· 訊號傳輸模組140與訊號傳輸模組210之溝通協定不侷限於 使用何種傳輸協定，除了應用無線的傳輸協定無線射頻識別 (Radio-frequency identification ^ RFID ) > WiFi ( Wireless Fidelity ^ 無線相容認證）、或藍芽（BlueT〇〇th )標準，也可使用有線的傳輸 協定，如I2C串列通訊協定或其他私有的傳輸協定。 以下搭配流程圖與示意圖說明前述之不同實施例以及技術效 果。 明多芩术么_』，你马奉發明所揭露之外部燈源控制方法之 j私圖之第-實施例，—併搭配參考『第3圖』，係為本發明所揭 露之外部燈源控制方法之操作示意圖。 上首先，、、.貝示裝置100週期性地提供一同步訊號（步驟勘）， 該同步訊號於交替的複數個第—週期以及複數個第二週期之期門 ^生°在-般的電視系統，可使用垂直同步訊號，當然_ 產生一同步訊號。 只外 、、脉控麵組13G於複數個第—週期時分別產生—第 源控制虎（步播？ u η、J··»· & 且 作於一第—狀• 广第—控制訊號用以控制—外部燈源操 第二产胁A 9 '她組13G於複數個第二週期時分別產生- 外該第二燈源控制訊號用以控制該 第說明，實際上，如『第3圖』所示，在 ^ T3)中，外部燈源200係操作於第一操 201248599 作狀態，亦即開啟狀態’在第二週期（偶數週期T2、T4)中，外 部燈源200係操作於第二操作狀態，亦即關閉狀態。當然，這邊 雖然將開啟狀態定義為第一操作狀態以及將關閉狀態定義為第二 操作狀態，在另一實施例中也可將外部燈源表現出的一第一亮度 定義為第一操作狀態，外部燈源表現出的一第二亮度定義為第二 操作狀態。 .一 而控制模組130產生第一燈源控制訊號後，就以有線或無線 的方式將第一燈源控制訊號傳送給外部燈源2〇〇 (步驟3ιι)，俾 使外部燈源2 0 〇回應第一燈源控制訊號而操作於第一操作狀態（開 啟）或者第一亮度（步驟312)。 同樣地，控制模組130.產生第二燈源控制訊號後，就以有線 或無線的方式將第二燈源控制訊號傳送給外部燈源細（步驟 切），俾使外部燈源操作於第二操作狀態、（關閉）或者第二 亮度（步驟322)。 旦般而言’外部燈源會同時加乘顯示器顯示白色影像以及黑 色，5V像的7C度值’假定此加乘值為又，則實際量測對比值CR又如 下式所示： d (白色影像亮度+λ ) / (黑色影像亮度+入） 由於黑色影像的免度值為很低的數值，甚至小於丨燭光米平 方jcd/m20rmts)的亮度，所以外部燈源加乘的亮度值又對的變 ^十77重要’即便加乘亮度值彳财〗燭絲平方，加乘後 的結果會使得CRA與理紐她幾乎呈現大财的降低。舉例來 3兄’白色影像亮度為5〇〇nits，黑色影像亮度為i nits，H nits ; s 12 201248599 則實驗室中無外部燈源影響所量測出來 根據麵之實關，每隔特定週__降低外部 度’可降低-定比率⑽部燈源加缝，是的= 平均對比值。舉例來說，每個奇數于如的時間 燈源打開，偶數週期則通知關閉外部产^m 100通知外部 閉時的對比各佔一半的時間：：：啟時的對比與關 提升平均耻值。 』絲制此技術能較可明顯 由於-般垂直同步職之週_ 6GHz以上，所以外部燈源 的開關頻率並不容錄使用者察覺，且同時可達聊省外部燈源 耗電的成效。前述之實施例同時可達到降低顯示絲面反射外部 光線（Reflection)的功效，尤其是對於使用鏡面咖购pe)面 板的顯示ϋ愈加顯著，當外部燈源開啟時，部分光線會經由面板 反射進而影響㈣者觀賞的品質，因此本發明可藉由週期性的關 閉外部燈源來降低反射的影響。 請參考『第4 ®』，係為本㈣簡露之外部㈣控制方法之 流程圖之第二實施例，-併搭配參考『第5圖』與『第6圖』，係 為本發明所揭露之外部燈源控制方法之操作示意圖。 首先，顯示裝置100週期性地提供一同步訊號（步驟400)，， 该同步訊號於交替的複數個第一週期以及複數個第二週期之期間 產生。在一般的電視系統，可使用垂直同步訊號，當然也可額外 產生一同步訊號。 201248599 接著，控制模組130於複數個第一週期時分別產生一第一燈 源控制訊號（步驟41〇)，該第一控制訊號用以控制一外部燈源操 作於-第一操作狀態，第一背光模控制訊號用以控制一背光模 組操作於—第-操作狀態。控纏組130於複數個第二週期時分 別產生-第二燈源控制訊號（步驟42〇)，該第二燈源控制訊 啸制該外部燈源操作H操作狀態，第二背光触控制訊 號用以控制-背光模組操作於一第二操作狀態。此外，控制模組 130也會於複數個第二週期產生—致能訊號（步驟)，用以致 能影像顯示模組（或者其中之相關電路）產生—插黑畫面，並使 影像顯示模組顯示一黑晝面。 ▲在此實施例中’外部燈源的第一操作狀態與第二操作狀態與 剛述之實施例類似，第-操作狀態定義為開啟狀態或者是第一亮 度’第二操作狀態定義為_狀態或者第二亮度。而背光模組的 第操作狀態與第二操作狀態與外部燈源的第一操作狀態與第二 操作狀態之定義類似，第一操作狀態定義為開啟或者是第一亮 度，第二操作狀態定義為關閉或者第二亮度。 而控制模組130產生第-燈源控制訊號後，就以有線或無線 的方式將第一燈源控制訊號傳送給外部燈源2〇〇 (步驟4ιι)，俾 使外部燈源2〇〇回應第一燈源控制訊號而操作於第一操作狀態（開 啟）或者表現出第-亮度（步驟412)。同樣地，控制模组13〇產 生第月光模組控制訊號後，則傳送給背光模組（步驟413)，俾 吏奇光模組120 應第-背光模組控制訊號而操作於第一操作狀 態（開啟）或者表現出第—亮度（步驟似）。特別說明的是這邊Synchronization, the control circuit generates corresponding control signals to be input to the data line signal output circuit and the scan line signal output circuit, and then the data line signal output circuit and the scan line signal output circuit are different according to the control signal. The data line and the scan line generate the input city, thus controlling the potential difference between the conduction and the equivalent capacitance of the fine crystal of each halogen, and further changing the arrangement of the Weijing molecules and the corresponding level of penetration. To display the displayed data on the panel. Since the detailed control operation is based on the technical model, the driving principle of the liquid crystal display device will be described only in an outline manner. 201248599 Display device KK) Other secret group of the other financial operation, which is not the main protection of Wei Wei, and is known to those skilled in the art, and is not disclosed here. In particular, it is necessary to say that the device (10) is provided with a control module 130' electrically connected to the image display module 11(), and the control module 1 is used to respond to - synchronize and generate a light source control view. No. to control the operation of an external light source. > Specifically, the control panel 13 〇 responds to the synchronization signal to generate a first source control _: or - a second source control signal, wherein the synchronization signal is in an alternating plurality of first-cycles and plural (four)-seconds _produce. In the real-time period, during the period of the plurality of first-periods, the control fiber group 13 产生 respectively generates the first light source control signal to control the external light source to operate in the first operation mode, in the plurality of second periods. During the period, the control module 130 generates the second light source control signal to control the external light source to operate in a second operating state. In the implementation of the financial, the first operational state and the second state are defined as outside. The source is turned on or off. When the first-light source control signal is recorded to turn on the external light source, then the first operating state is the open state of the external light source, and the second operating state is the source of the correcting source (four), so the second_control number The embodiment indicates that the external lamp I axis is to be turned off. This embodiment defines the first operation state and the second operation state as the open state of the external light source and the state of the external light source, respectively, and of course, the opposite is the _ state touch (4) . In another implementation, the first brightness indicated by the external light source may be defined as the first operating state, and the second brightness expressed by the external light source is defined as the second operating state. Therefore, in other words, the embodiment of the present invention can control the brightness of the external light source in addition to the synchronous control of the opening and closing of the external light source 201248599. The synchronization signal mentioned in the above embodiment can use vertical accounting (v_syne) in a general television system. The feed reduction step is the two basic synchronization signals of the display - and the other is the horizontal synchronization reduction. The horizontal synchronization signal determines the display of the display. The time of the screen is the vertical synchronization signal that determines the display from the honor screen. The top is drawn to the bottom and back to the _ start position, so the vertical sync signal also represents the update frequency of the display. In addition, it is also possible to generate a synchronization signal by the control group 13G or other circuits. This is defined as the use of the ambiguous singer. For example, the tiger will rely on the light control or the black-faced surface of the backlight module of the external light source or the secret system. Therefore, in another implementation, the backlight source of the backlight module 120 can also respond to the synchronization signal to make the lamp _ in the first operation state, the first operation state and The second operating state is similar to the first operating state of the external light source. In another embodiment, the control module 13G calls a plurality of first-cycles or a plurality of second cycles to generate a black-out picture. This embodiment can be used in conjunction with the aforementioned embodiment of controlling the opening or closing of the backlight module 120, and in conjunction with the control of an external light source to produce a variety of different (four) ratios. For example, in the _ type, the control group (10) is in a plurality of 帛it periods to generate a first backlight module control signal, and the first backlight _ signal is used to control the backlight module to operate in the -first operation state, The first backlight cycle is used to generate the H wire group control signal, and the second backlight module control signal is used to control the backlight module to operate in the second operating state. In another embodiment, the control module i3G is generated in a plurality of first cycles to generate a second f optical module control 201248599. The first old optical module control signal is used to control a backlight module operation. The second operating state is controlled by the control module and the group 130 to generate a first backlight module control signal in a plurality of second periods, and the first backlight module control signal is used to control the backlight module to operate in a first operation state. Details of the operation of this part will be described in detail in the subsequent method. Of course, the operating state of the backlight module is similar to the operating state discussed above. That is, the first operating state is the open state of the backlight module, and the second operating state is the closed state of the backlight module. In another embodiment, the -th-brightness exhibited by the backlight module can also be defined as the first operational state, and the second luminance expressed as the second operational state. The display device 100 is further provided with a signal transmission module, which is electrically connected to the control module 130. The signal transmission module 14 is configured to transmit the first source control signal and/or the second source control signal described above. External light source 2〇〇. In conjunction with the technology of the display device, the external light source 2 is also provided with a signal transmission module 210 for receiving the first source control signal and the second source control signal described above. The external light source 200 is also provided with a corresponding processing circuit for processing the first light source control signal and the second light source control signal, so that the external light source 2 〇〇 can respond to the first light source control signal and/or the second light The source control signal operates in a first operational state and/or a second operational state. In the foregoing embodiment, although the signal transmission module 14 and the signal transmission module 210' are transmitted only by the display device 100 to the external light source 2, only one-way transmission and reception and display are performed. Device 1 does not further receive signals from external light source 200. In fact, the display split can be designed to receive signals from the external light source 200 for different operations or control. Therefore, 201248599, although the current embodiment signal is only one-way transmission, of course, the signal transmission module can also - Two-way transmission and reception with both transmission and reception. The communication protocol between the signal transmission module 140 and the signal transmission module 210 is not limited to which transmission protocol is used, except for the application of wireless radio frequency identification (RFID) > WiFi (Wireless Fidelity ^ wireless) Compatible authentication, or BlueT〇〇th standards, can also use wired transport protocols, such as I2C serial communication protocols or other proprietary transport protocols. The various embodiments and technical effects described above will be described below in conjunction with flowcharts and schematic diagrams. Ming Duo 芩 么 』 』 』 』 』 』 』 』 』 』 』 』 『 『 『 『 『 『 『 『 『 『 『 『 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Schematic diagram of the operation of the control method. First, the , and . . . display device 100 periodically provides a synchronization signal (step survey), the synchronization signal in the alternate plurality of first period and a plurality of second period of the period The system can use a vertical sync signal, of course, to generate a sync signal. Only the outer, and pulsating surface group 13G are generated in a plurality of first-period periods - the first source control tiger (step broadcast? u η, J · ·»· & and in a first - shape • wide - control signal Used to control - external light source operation second production threat A 9 ' her group 13G is generated in a plurality of second cycles - the second light source control signal is used to control the description, in fact, such as "third As shown in the figure, in ^ T3), the external light source 200 operates in the first operation 201248599 state, that is, the open state 'in the second cycle (even cycles T2, T4), the external light source 200 operates on The second operational state, that is, the closed state. Of course, although the open state is defined as the first operational state and the closed state is defined as the second operational state, in another embodiment, a first luminance represented by the external light source may be defined as the first operational state. A second brightness exhibited by the external light source is defined as a second operational state. After the control module 130 generates the first light source control signal, the first light source control signal is transmitted to the external light source 2 by wire or wirelessly (step 3 ιι), and the external light source 2 0操作 operating in a first operational state (on) or a first luminance in response to the first source control signal (step 312). Similarly, after generating the second light source control signal, the control module 130 transmits the second light source control signal to the external light source in a wired or wireless manner (step cutting), so that the external light source operates in the first The second operational state, (off) or second luminance (step 322). As a general matter, 'the external light source will add the display to display the white image and the black, the 7C degree value of the 5V image'. Assuming that the multiplier value is again, the actual measured contrast value CR is as follows: d (white Image brightness + λ ) / (black image brightness + input) Since the black image has a very low value, even less than the brightness of the candle light squared jcd/m20rmts, the brightness value of the external light source is multiplied. The change of ^10 77 important 'even if the sum of the brightness value 彳 〗 〖, the square of the candle, the result of the multiplication will make CRA and Li Xin almost show a big reduction. For example, the 3 brothers' white image brightness is 5〇〇nits, the black image brightness is i nits, H nits ; s 12 201248599. There is no external light source in the laboratory to measure the measured surface according to the actual situation, every specific week. __Reducing the externality' can be reduced-fixed ratio (10) light source plus seam, yes = average contrast value. For example, each odd-numbered time source is turned on, and the even-numbered period is notified to turn off the external output. The mm 100 informs the external closed time that each of the comparisons takes half of the time::: Start-time comparison and off Increases the average shame value. 』Silk technology can be more obvious because of the vertical synchronization of the week _ 6GHz or more, so the switching frequency of the external light source does not record the user's awareness, and at the same time can achieve the effect of the external light source power consumption. The foregoing embodiments can simultaneously achieve the effect of reducing the reflection of the external reflection of the silk surface, especially for the display of the panel using the mirror surface. When the external light source is turned on, part of the light is reflected through the panel. Affecting the quality of (4) viewers, the present invention can reduce the effects of reflection by periodically turning off the external light source. Please refer to "4th", which is the second embodiment of the flow chart of the external (4) control method of the present (4), and with reference to "5th" and "6th", which is disclosed in the present invention. Schematic diagram of the operation of the external light source control method. First, the display device 100 periodically provides a synchronization signal (step 400), which is generated during an alternate plurality of first periods and a plurality of second periods. In a typical television system, a vertical sync signal can be used, and of course an additional sync signal can be generated. 201248599, the control module 130 generates a first light source control signal (step 41〇) in a plurality of first cycles, wherein the first control signal is used to control an external light source to operate in the first operating state, A backlight mode control signal is used to control a backlight module to operate in a -first operational state. The control group 130 generates a second light source control signal (step 42A) during a plurality of second periods, the second light source controls the external light source operation H operation state, and the second backlight touch control signal The control-backlight module operates in a second operating state. In addition, the control module 130 also generates an enable signal (step) in a plurality of second cycles to enable the image display module (or related circuit) to generate a black screen and display the image display module. A black face. ▲ In this embodiment, the first operational state and the second operational state of the external light source are similar to the embodiment just described, the first operational state is defined as the open state or the first luminance state is defined as the _ state. Or the second brightness. The first operating state and the second operating state of the backlight module are similar to the definition of the first operating state and the second operating state of the external light source. The first operating state is defined as being on or the first brightness, and the second operating state is defined as Off or second brightness. After the control module 130 generates the first light source control signal, the first light source control signal is transmitted to the external light source 2 by wire or wirelessly (step 4 ιι), so that the external light source 2 〇〇 responds The first light source control signal operates in a first operational state (on) or exhibits a first luminance (step 412). Similarly, after the control module 13 generates the monthlight module control signal, the control module 13 transmits the signal to the backlight module (step 413), and the singular light module 120 operates in the first operation state according to the first backlight module control signal. (On) or the first brightness (step-like). Specifically stated here
S 14 201248599 雖然將傳送的步驟以步驟4U以及步驟仍進行說明，但並非用 - 以限定其傳送的先後順序。 ' 、同樣地，控制模組130產生第二燈源控制訊號後，就以有線 或無線的方式將第二燈源控制訊號傳送給外部燈源(步驟 421)，俾使外部燈源2〇〇操作於第二操作狀態（關閉）或者表現 出第二亮度（步驟422)。同樣地，控制模組13〇產生第二背光模 組控制訊號後，則傳送給背光模組(步驟幻3)，俾使背光模 組120回應第二背光模組控制訊號而操作於第二操作狀態（關閉） 或者表現出第二亮度（步驟424)。 參考『第5圖』係為『第4圖』之實施例之實施態樣。在第 一週期（奇數週期ΤΙ、T3)中，外部燈源2〇〇與背光模組係操作. 於第刼作狀態，亦即開啟狀態，在第二週期（偶數週期Τ2、Τ4) 中，外部燈源200與背光模|且ι20係操作於第二操作狀態，亦即 關閉狀態。此外，在第二週期（偶數週期Τ2、Τ4)中，影像顯示 模組110會產生一插黑晝面。當然，這邊雖然以開啟定義第_操 作狀態以及以關閉定義第二操作狀態，在另一實施例中也可將第 -操作狀態定Α為第-亮度，第二操作狀態絲為第二亮度。 在此一實施例中，當插黑晝面時關閉顯示器背光以及外部燈 .源，此_示插黑晝©時面板較不^產生外部燈源的反射；相較 之下’當顯示-般晝面時外部燈源經由面板的反射較不易困擾使 用者，因此此一實施例適合不喜面板反射的使用者。 清參考『第6 ®』’係為本發明賴露之转燈雜制方法之 流程圖之第三實施例，-併搭配參考『第7圖』，係為本發明所揭 15 201248599 路之外部燈源控制方法之操作示意圖。 首先’顯示裝置湖週期性地提供一同步訊號（步驟5〇〇)， 同步訊號於交替的複數個第—週期以及複數個第二週期之期間產 生。在-㈣電視祕，可使_朗步訊號，當然也可額外產 生一同步訊號。 接者，控制模組130於複數個第一週期時分別產生一第二燈 源控制訊號以及-第-背光模組控制訊號（步驟51〇)，該第二= 源控制訊號用以控制-外部燈源操作於一第二操作狀態，第一^ 光模組控制訊制以控制背光模組m操作於—第—操作㈣ 控制模組UG於複數個第二週期時分別產生—第—燈源控制喊 以及第二背光難控制訊號（步驟52〇)，該第一燈源控制訊號用 =控制該外部燈源操作於-第—操作狀態，第二背光模組控制訊 號用以控制-背光模組操作於一第二操作狀態。此外，控制模組 130也會於該複數個第二週期產生一致能訊號（步驟汹），用以 致能影像顯賴組11()(或者射之相難路）產生—細 並使影像顯示模組110顯示一黑晝面。 "、、且 一在此實施例中’外部燈源的第一操作狀態與第二操作狀難 則述，實施例類似，第—操作狀態定義為開啟或者是第—亮Z 第-知作狀態定義為關或者第二亮度。而f光模組 狀態與第二操作狀態與外部燈源的第一操作狀態與第二摔作^能 之疋義類似’第-操作狀蚊義為開啟或者是第 二 作狀態定義為關閉或者第二亮度。 又第一插 而控制模請產生第二燈源控制訊號後，就以有線或無線 201248599 的方式將第二燈源控制訊號傳送給外部燈源200 (步驟511)，俾 使外部燈源200回應第二燈源控制訊號而操作於第二操作狀態（關 閉狀態）或者第二亮度（步驟512)。同樣地，控制模組130產生 第一背光模組控制訊號後，則傳送給背光模組12〇 (步驟513)， 俾使背光模組120回應第一背光模組控制訊號而操作於第一操作 狀態（開啟）或者第一亮度（步驟514)。特別說明的是這邊雖然 將傳送的步驟以步驟511以及步驟513進行說明，但並非用以限 定其傳送的先後順序。 同樣地，控制模組130產生第一燈源控制訊號後，就以有線 或無線的方式將第一燈源控制訊號傳送給外部燈源2〇〇 (步驟 521)，俾使外部燈源2〇〇操作於第一操作狀態（開啟狀態）或者 第一壳度（步驟522)。同樣地，控制模組13〇產生第二背光模紕 控制訊號後，騎送給背細組12G (步驟523)，俾使背光模組 Π0回應第二背光模組控制訊號而操作於第二操作狀態（關閉狀 癌）或者第二党度（步驟524)。 、參考帛7圖』係為『第6圖』之實施例之實施態樣。在第 一，期（奇數週期T卜T3)中，外部燈源係操作於第二操作 狀態，亦即關閉狀態，背光模級12G係操作於第一操作狀態，亦 ㈣啟狀態’在第二週期（偶數週期T2、T4)中，外部燈源· 操作於第“作㈣，亦即開啟，背光模組12()係操作於第二操 作狀態4即關閉。此外，在第二週期（偶數週期Τ2、τ4)中'，、 心像’’’、貝喊組11G會產生—㈣晝面。當然這邊的操作狀態也類 欲於前面討論的操作狀態。 、 17 201248599 在此-實施射，顯示-般晝面時顯示器㈣開啟並同步關 閉或降低外部麟，此時-般畫_暗部糾較低料部燈源所 影響，所以可以呈現較佳的對比顯示效果。#顯示插黑畫面時， 關閉背光源並同步開啟外部燈源，此時為插黑晝面，無晝面亮暗 對比的需求’因此此-實施例非常適合喜歡顯示對比值高的=用日 者。 本發明提出之可时控制外部燈源的顯示裝置，可提供同步 訊號透過錄或有_送概裝置來㈣外部紐難的週雛 開關來達到提高對比值或降低反射的目的。 本發明提出之可时控制外部燈源的顯示器，在使用背光關 閉配合插黑肋驗況下，㈣池讀供同纽號透過無線或 有線傳送接《置來㈣外部燈賴_週雛關，使得外部 燈源模組之關射絲__插職面畔姐向同步來達 到提尚對比值或降低反射的目的。 雖然本發咖前述之實_揭露如上，然其並非用以限定本 =。在不脫離本發明之精神和範圍内，所為之更動與潤飾，均 •發明之專利保護範圍。關於本發明所界定之保護範圍請表考 所附之申請專利範圍。 【圖式簡單說明】 第1圖 構圖。 係為本發明所揭露之可控.部燈源之顯示裝置之系統架 第3 201248599 意圖。 第4圖本發明所揭露之外部燈源控制方法之流程圖之第二實施例。 · 第5圖本發明所揭露之外部燈源控制方法之第二實施例之操作示 意圖。 第6圖本發明所揭露之外部燈源控制方法之流程圖之第三實施例。 第7圖本發明所揭露之外部燈源控制方法之第三實施例之操作示 意圖。 【主要元件符號說明】 100顯示裝置 110影像顯示模組 120背光模組 130控制模組 140訊號傳輸模組 200外部燈源 210訊號傳輸模組 19S 14 201248599 Although the steps to be transmitted are explained in steps 4U and steps, they are not used - to limit the order in which they are transmitted. Similarly, after the control module 130 generates the second light source control signal, the second light source control signal is transmitted to the external light source in a wired or wireless manner (step 421), and the external light source is turned on. Operating in the second operational state (off) or exhibiting a second brightness (step 422). Similarly, after the control module 13 generates the second backlight module control signal, the control module 13 transmits the control signal to the backlight module (step 3), and causes the backlight module 120 to operate in the second operation in response to the second backlight module control signal. The state (off) or the second brightness is displayed (step 424). Refer to "figure 5" for the embodiment of the "figure 4" embodiment. In the first period (odd period ΤΙ, T3), the external light source 2 〇〇 and the backlight module are operated. In the second state, that is, the on state, in the second period (even period Τ 2, Τ 4), The external light source 200 and the backlight module | and ι 20 are operated in the second operational state, that is, in the off state. In addition, in the second period (even period Τ 2, Τ 4), the image display module 110 generates a black-faced surface. Of course, although the first operation state is defined by the opening and the second operation state is defined by the opening, in another embodiment, the first operation state may be determined as the first brightness, and the second operation state wire is the second brightness. . In this embodiment, when the black backlight is inserted, the backlight of the display and the external light source are turned off, and the panel is less reflective than the external light source; The reflection of the external light source through the panel during the kneading is less susceptible to the user, so this embodiment is suitable for users who do not appreciate the panel reflection. The reference to "6th" is the third embodiment of the flow chart of the method for turning the lamp in the invention, and with reference to "Fig. 7", which is the disclosure of the invention 15 201248599 Schematic diagram of the operation of the light source control method. First, the display device lake periodically provides a synchronization signal (step 5 〇〇), and the synchronization signal is generated during the alternate plurality of first periods and the plurality of second periods. In the - (four) TV secret, you can make a _ lang step signal, of course, you can also generate a synchronization signal. The control module 130 generates a second source control signal and a -th backlight module control signal (step 51〇) during a plurality of first cycles, and the second source control signal is used to control the external The light source is operated in a second operating state, and the first light module controls the signal to control the backlight module m to operate in the first-operation (four) control module UG to generate the first-first light source in the plurality of second periods Controlling the shouting and the second backlight difficult control signal (step 52〇), the first light source control signal is used to control the external light source to operate in the -first operating state, and the second backlight module controlling signal is used to control the backlight mode The group operates in a second operational state. In addition, the control module 130 also generates a consistent energy signal (step 汹) in the plurality of second periods to enable the image display group 11() (or the phasing of the phase) to be generated and thinned and displayed. Group 110 shows a black face. ", and, in this embodiment, the first operational state of the external light source is difficult to describe with the second operational state, and the first operational state is defined as being on or in the first-lighting Z-known The state is defined as off or second brightness. The f-light module state and the second operational state are similar to the first operational state of the external light source and the second operational state of the second operational state. The first operational state is defined as being turned off or the second operational state is defined as being off or Second brightness. After the first plug-in control module generates the second light source control signal, the second light source control signal is transmitted to the external light source 200 in a wired or wireless 201248599 manner (step 511), so that the external light source 200 responds. The second light source control signal operates in a second operational state (off state) or a second luminance (step 512). Similarly, after the control module 130 generates the first backlight module control signal, the control module 130 transmits the control signal to the backlight module 12 (step 513), and causes the backlight module 120 to operate in the first operation in response to the first backlight module control signal. State (on) or first brightness (step 514). In particular, although the steps to be transmitted are described in steps 511 and 513, they are not intended to limit the order in which they are transmitted. Similarly, after the control module 130 generates the first light source control signal, the first light source control signal is transmitted to the external light source 2 by wire or wirelessly (step 521), so that the external light source 2〇 The operation is in a first operational state (on state) or a first degree of housing (step 522). Similarly, after the control module 13 generates the second backlight mode control signal, it is sent to the back group 12G (step 523), so that the backlight module Π0 responds to the second backlight module control signal to operate in the second operation. Status (closed cancer) or second party (step 524). The reference Fig. 7 is an embodiment of the embodiment of "Fig. 6". In the first period (odd period Tb T3), the external light source is operated in the second operating state, that is, in the off state, the backlight mode 12G is operated in the first operating state, and (4) the open state is in the second In the period (even period T2, T4), the external light source is operated in the first "fourth (four), that is, turned on, and the backlight module 12 () is operated in the second operating state 4, that is, turned off. In addition, in the second period (even number) In the period Τ2, τ4), ', the heart image ''', the screaming group 11G will produce - (4) 昼 face. Of course, the operating state here is also like the operating state discussed above., 17 201248599 Here - implementation of shooting, When the display is displayed, the display (4) is turned on and synchronously turned off or lowered. At this time, the general picture _ dark part is corrected by the light source of the lower part, so that a better contrast display effect can be exhibited. #Display when the black screen is inserted Turn off the backlight and turn on the external light source at the same time. In this case, the black-faced surface is inserted, and there is no requirement for bright and dark contrast. Therefore, the embodiment is very suitable for those who like to display the high contrast value. a display device that can control an external light source at any time, For the purpose of improving the contrast value or reducing the reflection, the synchronous signal is transmitted through the recording or the _send device (4) external difficulty switch. The present invention provides a display capable of controlling an external light source, and uses a backlight to close the plug. Under the black ribs test, (4) pool reading for the same number via wireless or wired transmission "set up (four) external lights _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The purpose of the present invention is to achieve the purpose of improving the contrast value or reducing the reflection. Although the foregoing disclosure of the present invention is not limited to the above, it is not intended to limit the present invention. • The scope of patent protection of the invention. Regarding the scope of protection defined by the present invention, please refer to the scope of the patent application attached. [Simplified illustration of the drawing] Figure 1 is a diagram of the controllable light source disclosed in the present invention. System frame of display device No. 3 201248599. FIG. 4 is a second embodiment of a flow chart of an external light source control method disclosed in the present invention. FIG. 5 is a second embodiment of the external light source control method disclosed in the present invention. Fig. 6 is a third embodiment of a flow chart of an external light source control method according to the present invention. Fig. 7 is a schematic view showing the operation of a third embodiment of the external light source control method disclosed in the present invention. Main component symbol description 100 display device 110 image display module 120 backlight module 130 control module 140 signal transmission module 200 external light source 210 signal transmission module 19